package com.pand.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.boot.autoconfigure.orm.jpa.JpaProperties;
import org.springframework.boot.orm.jpa.EntityManagerFactoryBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Primary;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.orm.jpa.JpaTransactionManager;
import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
import org.springframework.transaction.PlatformTransactionManager;
import org.springframework.transaction.annotation.EnableTransactionManagement;

import javax.persistence.EntityManager;
import javax.sql.DataSource;
import java.util.Map;

/**
 * Created by lh on 2017/11/8.
 */
@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(entityManagerFactoryRef = "entityManagerFactoryMysql", transactionManagerRef = "transactionManagerMysql", basePackages = {"com.pand.mysql.service"})
public class RepositoryMysqlConfig {
    @Autowired
    private JpaProperties jpaProperties;

    @Autowired
    @Qualifier("mysqlDS")
    private DataSource MysqlDS;

    @Bean(name = "entityManagerMysql")
    public EntityManager entityManager(EntityManagerFactoryBuilder builder) {
        return entityManagerFactoryMysql(builder).getObject().createEntityManager();
    }

    @Bean(name = "entityManagerFactoryMysql")
    public LocalContainerEntityManagerFactoryBean entityManagerFactoryMysql(EntityManagerFactoryBuilder builder) {
        return builder
                .dataSource(MysqlDS)
                .properties(getVendorProperties(MysqlDS))
                .packages("com.pand.mysql.model") //设置实体类所在位置
                .persistenceUnit("MysqlPersistenceUnit")
                .build();
    }

    private Map<String, String> getVendorProperties(DataSource dataSource) {
        Map map =  jpaProperties.getHibernateProperties(dataSource);
        map.put("hibernate.dialect","org.hibernate.dialect.MySQL5Dialect");
        return map;
    }

    @Bean(name = "transactionManagerMysql")
    PlatformTransactionManager transactionManagerMysql(EntityManagerFactoryBuilder builder) {
        return new JpaTransactionManager(entityManagerFactoryMysql(builder).getObject());
    }
}
